Practical, commercial, and cross-border insight for entrepreneurs, investors and growing companies.
We advise entrepreneurs, investors, and growing companies on the full spectrum of UK business tax matters. From early-stage structuring and employee incentives through to sale, succession, or cross-border expansion, our approach is pragmatic, technically robust and commercially focused.
Our clients range from UK owner-managed businesses to international groups with complex cross-border footprints. Many are connected to the US or Europe, where our integrated international tax team provides seamless coordination across jurisdictions.
Areas we cover
Tax valuations
Employee share schemes
Tax efficient fundraising
Corporate reconstructions
Pre and post exit transaction tax support
Succession planning, including employee ownership trusts, management buyouts and the availability of business property relief
Cross border tax issues
Expanding to or from the UK
Financing operations
Our approach
Our approach integrates corporate, shareholder and personal tax considerations into one cohesive strategy. Whether you’re growing, raising capital, or planning an exit, we ensure the tax structure supports your commercial goals at every stage.
Who we help
At Ostberg Sinclair we advise entrepreneurs, investors, and growing companies on the full spectrum of UK business tax matters. From early-stage structuring and employee incentives through to sale, succession, or cross-border expansion, our approach is pragmatic, technically robust and commercially focused.
Our clients range from UK owner-managed businesses to international groups with complex cross-border footprints. Many are connected to the US or Europe, where our integrated international tax team provides seamless coordination across jurisdictions.
- Margaret Mitchell, Gone with the Wind"...but in this world nothing can be said to be certain, except death and taxes"
More about UK business tax advisory services
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Demystifying Form W-8BEN-E - What’s it used for and why do I need one?
12th March 2025
We are frequently contacted by UK (and other non-US) companies who have been sent a Form W-8BEN-E, Certificate of Status of Beneficial Owner for United State...
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Navigating the Upcoming Changes: Making Tax Digital for Income Tax
26th June 2025
The landscape of tax reporting in the UK is evolving. Starting from April 2026, the introduction of Making Tax Digital for Income Tax Self-Assessment (MTD fo...
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Budget 2025: What It Means for You, Your Business, and Your Trusts
28th November 2025
In a Budget of broad tax reform, one thing remains certain: tax complexity is here to stay. On 26 November 2025, Chancellor Rachel Reeves delivered her seco...
Ready to turn complexity into clarity?
We’re here to help you make informed decisions, with confidence.